Test for the directory structure

Ensure that calcurse uses the right data and configuration directories
depending on the conditions.

Helped-by: Lars Henriksen <LarsHenriksen@get2net.dk>
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>

test/Makefile.am

@@ -4,6 +4,12 @@ TESTS = \
 	true-001.sh \
 	run-test-001.sh \
 	run-test-002.sh \
+	io-001.sh \
+	io-002.sh \
+	io-003.sh \
+	io-004.sh \
+	io-005.sh \
+	io-006.sh \
 	todo-001.sh \
 	todo-002.sh \
 	todo-003.sh \